Air-cooling apparatus.



I. WITTENMEIER.

AIR COOLING APPARATUS.

APPLICATION FILED MAY 18,1911.

1,003,129. Patented Sept. 12,1911.

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, F. WITTENMEIER.

AIR UOOLING APPARATUS.

APPLICATION FILED MAY 18, 1911.

mm ,.WM Z w W UNITED STATES PATENT OFFICE. I

FREDERICK WITTENIEIER, OF CHICAGO, ILLINOIS,

ASSIGNOB TO KROESCHELL BROS.

ICE MACHINE 00., OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

- AIR-COOLING APPARATUS.

Specification of Letters Patent. Patented Sept, 12,

Application filed May 18, 1911. Serial No. 628,027;

- To al w om it my emm;

Be it known that I, FRE ERICK WITTEN- MEIER, a citizen of the United States, residin at Chicago, in the county of Cook and tate of Illinois, have invented a new and useful Improvement in Air Cooling Apparatus, of which the following is a specification.

My invention relates to an improvement in the class of apparatus for cooling and drying fresh air in conducting it through its course to an inclosurc to be supplied therewith, and comprising a box or housing divided into intercommunicating compartments each containing a refrigerating coil in the path through the box of the air to be treated. In the use of apparatus of the kind referred to, it is the practice to direct the air to be cooled downwardly through one compartment, in contact with the refrigerating coil therein to preliminarily cool the air and it by congealing moisture out of it, and thence upwardly and out of the apparatus through the other compartment to 26 complete cooling the air by its contact with the refrigerator in such other compartment and the operation is reversed periodically, always in time to prevent choking the course of the air by the congealed accumulation on 80 the first coil therein and thereby also melting the accumulated frost on'that-coil by the influence thereon of the relatively-warmer a1r.

My improvement pertains to a valve-device for reversing the course through the apparatus of the air to be treated; and it consists in a novel construction of valvedevice which I have provided for the purose.

In the accompanying drawing, Figure 1 is a view in vertical longitudinal section, partly broken, of an air-cooling and drying apparatus equipped with my improvement, and showing connected therewith, in the nature of a diagrammatic representation, an air-blower; Fig. 2 is a section on line 2, Fig.

- 1, and Fig. 3 1s a section on line 3, Fig. l.

A suitable box or housing 4 is divided centrally by a vertical partition 5 into two compartments 6 and 7 containing, respectively,

refrigerating-coils 8 and 9 and intercommunicating through an opening, indicated at 10, in the lower part of the partition. The coils are provided, as indicated, with usual valved connections for controlling the circulation throughlthem of a suitable refrigerant; and in each compartment is arranged a set of horizontal baflle-plates 11 for prolonging the course of the air through the compartments and its subjection to the influence of the coils.

In the upper end of one side of the box .4 is an opening 12 from between the upper and lower ends of which extends horizontally outward a partition 14, shown hollow and filled with heat insulating material 13, this partition forming the bottom of an upper air-outlet conduit 16 and the top of a lower air-inlet conduit 17 both shown of rectangula-r cross-section. A suitable air-blower, represented at 18 in Fig.

1, communicates, as indicated by the dotted line at 19, with the conduit 17 at its outer end.

A rotatable shaft 20 extends vertically through the conduits 16 and 17 near the opening 12 and carries on its lower end an operating handle 21. In the conduit 17 the partition 5 is extended, as repnsented in Fig. 3, to the shaft 20, which carries in that conduit a valve 22 comprising a sleeve 23 secured about the shaft and having two wings 24 and 25 extending from it at right angles to each other; and a similar valve 26, with the wings 27 and 28 extending from the sleeve on the shaft is provided in the conduit 16. The two valves are relatively so disposed on their shaft, that they may be set by rotating the shaft through a quarter turn. As the valves are shown to be set, the one in the lower conduit ,has its wing 24 ex tended across the passage to the compartment 6, while that 1n the upper conduit has its wing 27 extended acrossthe passage to the compartment 7. Thus air from the. blower 18 entering the conduit 17 will enter. and pass downwardly in the comparts ment 7 and traverse the coil 9 therein to be cooled (and dried thereby, thence pass through the' partition-opening 10 into the base of'the compartment 6, rising therein to be further cooled by the coil 8, and passing out through the'conduit 16 to an inclosure (not shown) to be supplied with the treated air. To reverse the operation 'of the apparat-us, the shaft is given a quarter turn in 0 the direction indicated by arrows in Figs. 2 and 3, thereby setting the'valve 22 to close the passage through the supply-conduit 17.

to the compartment 7 .and open it to the compartment 6, and at the same time setting apparatus.

the valve .26 to open to the discharge-conduit '16 the compartment 7 and close thereto the compartment 6. As will be noted, the valve-wings 27 and 28 carry on their edges which meet the adjacent edge of the partition 5, strips 30 forming stops to lap that edge of the partition and there complete the closure past it between the compartments; and the extension of the artition 5 in the conduit 17 likewise comp etes the "closure, Thus, by providing the wingvalves 22, 26, on the one shaft 20 to extend at right-angles to each other, by a mere quarter-turn of the shaft the valves areset to reverse the operation of the air-treating What I claim .as new and desire to secure by Letters Patent is 1. In combination with an air-coolingapparatus comprising a box having an opening in one side and intercommunicating compartments containing refrigeratingcoils, inlet and outlet conduits for the air supplied to said box, communicating with the compartments at said opening, a shaft rotatably supported in the conduits, and

wing-valves'on said shaft and set thereon at right-angles 'to each other, each valve having a pair of Wings extending at right-an.- gles to each other from the shaft to close the passage through the conduit containing it .to one compartment while opening said conduit to the other compartment, for the purpose set forth.

2. In combinationwith an air-cooling'ap paratuscomprising a box having intercommunicating compartments and an opening in oneside and containing refrigeratingcoils, inlet and outlet conduits, extending one over the other from said opening, for 40 the air-supply to and from said compartments, a rotary shaft extending vertically through the conduits near their inner ends,

and wing-valves in the conduits on said shaft and set thereon at right-angles to each other, each valve having a pair of wings extending at right-angles to each other from the shaft to close the passage through the conduit containing it to one compartment while opening said conduit to 5 the other compartment, for the purpose set forth. e

3, In combination with an air-cooling apparatus comprising a box having an opening in one side, a vertical partition dividing the box nto two compartments intercommunicatingat their base-portions, and a refrigerating-coil in each compartment, inlet and outlet conduits, extendlng one over the other from the box at and covering said.

opening, for the air-supply to and from said compartments, a rotary shaft extending vertically through the conduits near said opening and rovided with an operating handle, and wing-valves in the conduits 5 on the shaft and set thereon at right-angles to each other, each valve having a pair of wings extending at right-angles to each other from the shaft and cooperating with the conduit-walls and adjacent end of saidpartition to close the passage through the conduit containing it to one compartment while opening said conduit to the other compartment, for the purpose set forth.

' FREDERICK WITTENMEIER. In presence of- -U. THORIEN, WILLIAM T. J ONES. 

